package com.sq.springcloud.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.Date;

/**
 * @Description: 自定义过滤器链
 * @author: ydy
 * @date: 2022-10-13 15:43
 */
@Component
@Slf4j
public class MyLogGateWayFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
       log.info("*******************come in MyLogGateWayFilter： " + new Date());
        String uname = exchange.getRequest().getQueryParams().getFirst("uname");
        if(uname == null){
            log.info("******用户名为null，非法用户");
            exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);
            return exchange.getResponse().setComplete();
        }
        //将当前判断通过的exchange放到过滤器链中传递下去
        return chain.filter(exchange);
    }

    //设置顺序
    @Override
    public int getOrder() {
        return 0;
    }
}
